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sira XCERTIFICATION SCHEDULE EC TYPE - EXAMINATION CERTIFICATE Sira 08ATEX9047 Issue 2 13 DESCRIPTION OF EQUIPMENT The Type 71SO Tank Overfill Prevention Valve is designed to be fitted to a class I or Class II liquid fuel storage tanks . The Valve bolts onto the top of the tank and connects to the fill pipe via a 4"/DN100 ( nominal ) connection . The Valve" comprises a tubular body and contains a two -stage valve arrangement . The Valve is actuated by an external float and actuating arm . A drop tube is fitted above the valve with a crimp' to direct flow . Fill Type as defined in Normal operating Maximum static pressure Valves method EN 13616 pressure after closure Gravity Al 0 . 4 bar 2 bar Two sta e Ll & LZ Design options The drop tube may be cut to the required height and is finished with a sealed cap . The Valve is designated according to the drop tube height : Designation Vapour tight Upper drop tube height inches Lower drop tube height inches 71SO-400A Yes 60 83 71SO-410A Yes 120 102 Variation 1 - This variation introduced the following change : i . The part numbers were revised . Variation 2 - This variation introduced the following changes : i . The drawing list was reviewed and several obsolete drawings were removed . ii . Drawing C05158 was added to this certificate, this drawing depicts the latch sub-assembly of the Fuel Tank Overfill Prevention Valve . iii . Drawing C05159 was added to this certificate, this drawing depicts the float mechanism sub- assembly of the Fuel Tank Overfill Prevention Valve . iv . Drawing D01865M was added to this certificate, this drawing depicts the upper tube of the Fuel Tank Overfill Prevention Valve . v . Drawing 71SO- 400C was revised to recognise change to parts list adding packaging details . vi . Drawing 71SO- 410C was revised to recognise change to parts list adding packaging details' vii . Additional marking required by the standards was added to the certificate . 14 DESCRIPTIVE DOCUMENTS 14 . 1 Drawings Refer to Certificate Annexe . 14 . 2 Associated Sira Reports and Certificate History Issue Date Report no . Comment 0 7 August 2008 R59M15853A The release of the rime certificate . 1 25 October 2010 R23046A/ 00 The introduction of Variation 1 . 2 18 March 2014 R33102A/00 The introduction of Variation 2 . This certificate and its schedules may only be reproduced in its entirety and without change . Sira Certification Service Rake Lane , Eccleston , Chester, CH4 9JN , England Page 2 of 3 Tel : +44 ( 0) 1244 670900 Fax: +44 (0) 1244 681330 Form 9400 Issuel Email : i nfo(o)si racerti fi cation . corn Web : www . siracertification. com